package net.lzzy.practices.web.course;

import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import net.lzzy.practices.constants.ApiConstants;
import net.lzzy.practices.constants.Messages;
import net.lzzy.practices.entities.Chapter;
import net.lzzy.practices.services.ChapterService;
import net.lzzy.practices.utils.StringUtils;
import net.lzzy.practices.web.models.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.ArrayList;
import java.util.List;
import java.util.UUID;

/**
 * @author zly on 2022/5/30
 * Description:
 * */


@Api(tags = "章节相关业务")
@CrossOrigin
@RestController
@RequestMapping(ApiConstants.ROUTE_CHAPTER_ROOT)
public class ChapterApiController {

    private  final ChapterService service;

    @Autowired
    public ChapterApiController(ChapterService service){

        this.service = service;
    }

    @ApiOperation(value = "获取老师的章节",notes = "1.token(String)<br/>2.id(UUId)<br/>")
    @GetMapping(ApiConstants.ROUTE_CHAPTER_TEACHER)
    public ApiResult getTeachersChapters(@RequestParam String token, @RequestParam(name="id")UUID courseId){
        List<Chapter> chapters = service.getTeachersChapters(courseId, token);
        return transform(chapters);

    }

    private ApiResult transform(List<Chapter> chapters){
        if(chapters == null){
            return new ApiResult(false, Messages.WRONG_ID+"或"+Messages.NO_PERMISSION,null);
        }
        List<VmChapter>vmChapters=new ArrayList<>();
        chapters.forEach(chapter -> vmChapters.add(new VmChapter(chapter)));
        return new ApiResult(true,vmChapters.size()+"",vmChapters);
    }




    @ApiOperation(value = "获取所有学生的章节",notes = "1.token(String)<br/>2.id(UUId)<br/>")
    @GetMapping(ApiConstants.ROUTE_CHAPTER_STUDENT)
    public ApiResult getStudentsChapters(@RequestParam String token, @RequestParam(name="id")UUID courseId){
        List<Chapter>chapters=service.getStudentsChapters(courseId,token);
        return transform(chapters);
    }

    private ApiResult addOrUpdate(UUID id, ChapterInfo info){
        String token = info.getToken();
        String name = info.getName();
        String desc = info.getDesc();
        String strCourseId=info.getCourseId();
        boolean open= info.isOpen();
        if(StringUtils.isEmpty(token)||
                StringUtils.isEmpty(name)||
                StringUtils.isEmpty(desc)||
                StringUtils.isEmpty(strCourseId)){
            return new ApiResult(false,Messages.INCOMPLETE_INFO.toString(), null);
        }
        boolean create = id == null;
        UUID courseId = UUID.fromString(strCourseId);
        Chapter chapter = new Chapter();
        chapter.setOpen(open);
        chapter.setName(name);
        chapter.setDescription(desc);
        VmChapter vmChapter;
        if(create){
            vmChapter = new VmChapter(service.add(courseId,chapter,token));

        }else {
            vmChapter=new VmChapter(service.update(id,chapter,token));
        }
        return new ApiResult(true,Messages.SUCCESS.toString(), vmChapter);

    }

    @ApiOperation(value = "添加章节",notes = "1.token(String)<br/>2.id(UUId)<br/>")
    @PostMapping(ApiConstants.ROUTE_CHAPTER_ADD)
    public ApiResult add(@RequestBody  ChapterInfo info) {
        return addOrUpdate(null, info);

    }

    @ApiOperation(value = "更新章节",notes = "1.token(String)<br/>2.id(UUId)<br/>")
    @PostMapping(ApiConstants.ROUTE_CHAPTER_UPDATE)
    public ApiResult update(@PathVariable UUID id,@RequestBody ChapterInfo info){
        return  addOrUpdate(id,info);
    }

    @ApiOperation(value = "是否开发章节",notes = "1.token(String)<br/>2.strChapterId(String)<br/>3.open(boolean)<br/>")

    @PostMapping(ApiConstants.ROUTE_CHAPTER_OPEN_CLOSE)
    public ApiResult openCloseChapter(@RequestBody ChapterOpenInfo info){
        String token=info.getToken();
        String strChapterId=info.getChapterId();
        boolean open=info.isOpen();
        if (StringUtils.isEmpty(token)||StringUtils.isEmpty(strChapterId)){
            return new ApiResult(false,Messages.INCOMPLETE_INFO.toString(), null);
        }
        Chapter chapter=service.openCloseChapter(UUID.fromString(strChapterId),open,token);
        if (chapter==null){
            return new ApiResult(false, Messages.WRONG_ID+"或"+Messages.NO_PERMISSION,null );
        }
        return new ApiResult(true,Messages.SUCCESS.toString(),new VmChapter(chapter));
    }

    @ApiOperation(value = "删除章节",notes = "1.token(String)<br/>2.chapterId(String)<br/>")
    @DeleteMapping(ApiConstants.ROUTE_CHAPTER_REMOVE)
    public ApiResult delete(@RequestBody ChapterKeyInfo info){
        String token=info.getToken();
        String strChapterId=info.getChapterId();
        if (StringUtils.isEmpty(token)||StringUtils.isEmpty(strChapterId)){
            return new ApiResult(false,Messages.INCOMPLETE_INFO.toString(), null);
        }
        Messages msg=service.remove(UUID.fromString(strChapterId),token);
        return new ApiResult(msg==Messages.SUCCESS,msg.toString(),null);
    }
}
